AmpBenzScientist @AmpBenzScientist@qoto.org

@AmpBenzScientist

No, the whole point of an interrupt is that it isnt a conditional NOP.

@lupyuen

I want to try and dip those shitty eco-friendly paper straws in stearin to see what happens. Maybe they're nicer with a wax coating.

I mean, beeswax is eco-friendly? Why not dip straws in beeswax to make them water resistant?

Man, these soggy eco-friendly paper straws suck ass.

To an Asian, this way of picking up chopsticks is probably what 5-year-olds do over there, but it's what I do...

Reminder that the ARM processor - which now dominates the mobile market completely - was originally a British design. Europe is far from being an insignificant player in tech, even if it doesn't have the most successful consumer products. May I also remind you that the KiCad CAD software was designed at CERN, Switzerland and is used by companies all over the world to design printed circuit boards?

#RISCV "Wait for Interrupt instruction (WFI) provides a hint to the implementation that the current hart can be stalled until an interrupt ... so a legal implementation is to simply implement WFI as a NOP" 🤔

Source: https://github.com/riscv/riscv-isa-manual/releases/download/Priv-v1.12/riscv-privileged-20211203.pdf

@AmpBenzScientist @niclas @xorbit @rhempel @lupyuen absolutely. i have no idea what notebook to buy with thinkpads being extra-slim now as well. even the workstation series seems to be plastic shit in the latest iterations.

i know there are framework etc. but tbh they feel like something expensive (the price is probably fair but really can't compete with refurbished notebooks ;) ultra modular. i just want something robust like an ibm thinkpad.

Upcoming: #RustLang for Apache #NuttX RTOS 👍

Source: https://github.com/apache/nuttx/issues/11907

Building Apache #NuttX RTOS for TinyEMU #RISCV Emulator

Article: https://lupyuen.codeberg.page/articles/tinyemu.html#appendix-build-nuttx-for-tinyemu

I don't think Metallica is my favourite metal band.

@AmpBenzScientist @rhempel @lupyuen
"A good Embedded System should operate without issue for many years."
Exactly. That is: it should operate completely unlike the steaming pile of turd that most software on this planet has turned into. (Despite all the abstractions and CI that supposedly was going to make it all better and has completely failed to do so.)

Embedded need to be lean, simple, predictable, reliable.

@xorbit

"Embedded need to be lean, simple, predictable, reliable." --> Sadly, that should be true for all software, but was sacrificed in the 1990s or so.
Big projects back then had "memory budgets", now in most projects we don't even know how much memory is required.

~1999, I ran a building automation system in Java, with a web UI in Java, attached (JServ back then) to a Apache webserver, on RedHat Linux with a fvwm95 desktop.... On 32MB of RAM!!

@AmpBenzScientist @rhempel @lupyuen

@niclas @xorbit @AmpBenzScientist @rhempel @lupyuen
and contrary to modern stuff, old software tends to still run just fine. fvwm still works, apache still works. can't say that of most modern software.

@BernieDoesIt

I grew up in extreme poverty that continued into adulthood. I lived in the ghetto, on welfare in section 8 housing in a home with my grandparents, cousins, uncle, and mother all in the same small home.

Thank you for the QED though regarding your own bias.

@jkxyz @scottsantens

Interesting fact of the day: A gravitational wave, having energy, also generates its own gravitational field in addition to itself. Though this field is insanely weak.

Note this is not the same as saying a gravitational field has its own gravitational field. It is only the wave that has energy, and thus its own field. A gravitational wave only occurs when an object with a gravitational field accelerates (and orbiting another object counts as acceleration).

In the 60s this would have been a starving lion. Scientists are slacking these days!

@lupyuen Wow. Responses like that explains why the industry looks the way it does.

🤔 "Why would any sane CS Grad switch to Engineering to do #Embedded Systems? ... I don't get how working with obsolete machines is anymore useful to learning how modern computers work than actually working on modern machines"